Maricopa Community Colleges  ABC110   19936-19956 
Official Course Description: MCCCD Approval: 11/28/95
ABC110 19936-19956 LEC 2 Credit(s) 2 Period(s)
Electrical Safety and General Commercial Wiring
Safety practices for working with circuits or equipment in low voltage, high voltage, and hazardous locations. Includes disconnecting and labeling circuits, safe use of ladders and scaffolds, accident reporting and first aid. General requirements for commercial wiring. Prerequisites: (Indentured status with Associated Builders and Contractors Inc., and one year field experience) or permission of the apprenticeship coordinator.
Go to Competencies    Go to Outline
 
MCCCD Official Course Competencies:
 
ABC110   19936-19956 Electrical Safety and General Commercial Wiring
1. Explain the importance of electrical safety on the job and describe the role of Occupational Safety and Health Administration (OSHA) (I a, b)
2. Identify and describe the two major types of injuries encountered in the electrical industry. (I c)
3. Describe general safety practices which could limit the number of electrical and mechanical accidents. (I d, e)
4. Describe the procedure for disconnecting a circuit or system from its power source. (I e)
5. Outline the procedures for reporting an accident and administering first aid when an accident has occurred. (I g)
6. List safety practices that should be observed when using scaffolds or ladders. (I h)
7. Describe the basic safety practices for shoring and evacuating a trench. (I i)
8. Give examples of safe practices when working with high voltage or in hazardous locations. (I j)
9. Identify and locate the correct National Electrical Code (NEC) Articles and Sections that apply to given installations. (II)
10. Explain the minimum NEC requirements for sizing, conduit fill, conductor ampacity, and junction box volume. (II)
Go to Description    Go to top of Competencies
 
MCCCD Official Course Outline:
 
ABC110   19936-19956 Electrical Safety and General Commercial Wiring
    I. Electrical safety
        A. Importance on the job
        B. Role of Occupational Safety and Health Administration (OSHA)
        C. Types of injuries
          1. Mechanical
          2. Electrical
        D. Accident/injury avoidance
        E. General safety practices on the job
          1. Personal behavior
          2. Correct tool section
          3. System disconnect
          4. Labeling disconnected circuits
          5. Hazards awareness
          6. Effects of drugs or alcohol
        F. Basic first aid
        G. Accident reporting
        H. Scaffolding and ladder safety
          1. Parts of a scaffold
          2. Use of scaffolding
          3. Scaffold construction
          4. Working on a scaffold
          5. Ladder
        I. Trenching
          1. Trench evacuation
          2. Shoring techniques
        J. Hazardous locations
          1. Classifications
          2. Equipment
          3. Circuit and environmental conditions
          4. Proper attire
        K. High voltage
          1. Definition
          2. Tools used with high voltage equipment or lines
      II. General requirements for commercial wiring
          A. Conductor ampacity
            1. Conductor insulation
            2. Temperature ratings
            3. Wet or dry locations
            4. 60 degree C and 75 degree C rating of circuit breakers
          B. Minimum National Electrical Code (NEC) requirements
            1. Conduit fill
            2. Ampacity
            3. Junction box volume
            4. Given installations
          C. Temperature compensation
          D. Sizing
            1. Wire
            2. Box
            3. Service entrance
            4. Motel service
            5. Conduit and conductor
          E. Voltage drop
          F. Electrical specifications
          G. Panel schedules
      Go to Description    Go to top of Competencies    Go to top of Outline